Respuesta :

gmany

Step-by-step explanation:

[tex]n-\text{a number}\\\\\dfrac{1}{2}n=0.5n=\dfrac{n}{2}-\text{half a number}\\\\\text{The difference of nine and half of number:}\\\\\huge\boxed{9-\dfrac{1}{2}n=9-0.5n=9-\dfrac{n}{2}}[/tex]